Improved die for forming sleeve-buttons



dlnitcd tats?,

HENRY ANSLEY, OF WASHINGTON, DISTRICT OI COLUMBIA.

Letters Patent No. 101,565, dated April 5, 1870.

IMPROVED DIE FOR FORMIN'G SLEEVE-BUTTONS.

The Schedule referred to ln these LetterePatent and making part of thesame.

To all whom it may concern.:v

Aexact description thereof, reference being had to the annexed drawingmaking part of this specification, in

whichl Figure 1 is a plan or top view of the lower or stationary die.

Figure 2 is a central vertical section thereof.

Figure 3 is a bottom view of the upper or movable die.

Figure 4 is a central vertical section thereof.

Figures 5, 6, and 7 are views of the punch.

Figure 8 is a plan view of the plate upon which the metal is placedfromwhich blanks are to be punched.

Figures 9 to 13 represent views of a sleeve-button at different stagesot' its manufacture.

The saine letters are used in the designation of identical parts in theseveral figures.

, The nature ofmy invention consistsin providing dies for formingsleeve-buttons or studs, one set-otl which is used to punch blanks toform the shank and cross-bar which are to unite the outer disk and coilof the button, and the other set for pressing the coil and cross-barinto the requisite form.

To enable those skilled in the art to make and use my invention, I willproceed to describe its construction and operation.A

In the drawing- A represents aT-shaped punch, the perpendicular bar ofwhich has a tenon, a, formed on its end, as

Vshown in figs. 5 and 7.

The ends of the cross-bar are provided with angular grooves, a', and itsouter face has a slight rise running from near its center to one end.

The punch is to be made so as to preserve its T- shaped form, say fromone-fourth to one-half inch, and may then terminate in a plate or shankby which it can Ybe attached to a' suitable device for opeiatingit.

B represents a plate of metal, provided with a perfol-ation of theprecise shape of the punch A, which the latter enters in punching theblank.

C represents the lower and 'stationary die, which may be made round, or'of any other suitable form. It is to have a central perforation, of theform of the shank, which recedes into it while the coil and crossbar arebeing pressed.

In its upper plane surface a circular groove, of such diameter and widthas it is intended to give the coil is to be formed, which graduallydeepens in the direc. tion of the arrow from the point c to the pointcl, where it terminates in a circular recess, ci.

A straight groove is also formed in the upper surface ol' this die,running across its center, and uniting with 'the circular groove, itsposition with reference to the recess c2 being such as is clearly shownin tig. l. It is of the depth of the circular groove where it unitestherewith at the point c3; thence it gradually deepens to the centralperforation; the opposite' portion, c, is very shallow, and of aboutuniform depth.

D represents the movable or upper die, which is to bel of similar formas the lower one.

Grooves are to be formed in its under plane surface, the outlines ot'which are like those in the die C, but the relative positions of thestraight groove and the recess d2 are such that, when the dies cometogether, the straight grooves cover each other; but the recesses c2 and(l2 are about one-third ot' the periphery of the circular grooves apartfrom each other.

The circular groove in this die deepens from the point tl to the pointtl, that is, in the opposite direction from the one inv the stationarydie, which thus together form'a spiral groove, in .which the coil is t-obe pressed.

Its straight groove is formed like c ci, its position being such,however, that, on bringing the dies together, the deeper portion 1l inthe upper, covers the shallow portion c* in the lower, so that, inpressing the coil Iand blank, one arm of the cross-bar of the latter israised slightly above the other. v

The operation of' forming a sleeve-button or stud by these dies may bedescribed as follows:

The dies having been attached to suitable devices for operating them, ablank is punched by the punch A, which blank is then, by its cross-bar,attached to the coil of wire, (which has been previously prepared,) asshown in lig. 10, by slipping its grooved ends on the wire, andsoldering it thereto at the proper points. The blank and coil thusunited are now placed upon the stationary pressing-die, the shankreceding into its pelforation, the cross-bar laying in the transversegroove, and the coil in the spiral groove, its inner end just coveringthe recess el" in said die, and its outer end overlapping far enough tocover the recess d2 in the movable die, which lis now pressed down,giving the form shown in fig-11 to the' coil, its end being rounded andprovided with slight knobs thereby. The outer disk of the butt-on isthen to be riveted to the shank.

It will be seen that, by the operation of pressing, the overlapping endsof the coil are made to adhere to each other, necessitating theirseparation in tinsn- .ing the button.

Having thus described my invention, That I claim, and desire to secureby Letters Iatent, is-

1. The combination of the punch A and die-plate In testimony whereof Ihave signed my name to B, constructed substantially as shown anddescribed, this specification in the presence of two subscribing andmade to operate so as to punch a blank, in the witnesses.

manner and for the purpose specied. HENRY ANSLEY.

2. The combination of the dies C and D, con- Witnesses: Y structedsubstantially as shown and descnbed, and F. U. STIfrT,

made to operate as and for the purpose set foh. T. C. CONNOLLY

